USB charger



FIG. 1 is an upper perspective view of a USB charger showing our new design;

FIG. 2 is a top view of the design of FIG. 1;

FIG. 3 is a bottom view of the design of FIG. 1;

FIG. 4 is a first side view of the design of FIG. 1;

FIG. 5 is a second side view of the design of FIG. 1;

FIG. 6 is a front view of the design of FIG. 1;

FIG. 7 is a rear view of the design of FIG. 1; and,

FIG. 8 is a lower perspective view of the design of FIG. 1.

The broken lines represent portions of the article as well as boundaries of the claim, none of which form part of the claim. 

CLAIM The ornamental design for a USB charger, as shown and described. 